today, defense secretary chuck hagel weighed in, saying the u.s. is not going to act precipitously, instead will join with allies to investigate further. >>> and back here, a provocative admission from former supreme court justice sandra day o'connor. for nearly 13 years, she stayed silent about that game-changing supreme court decision that handed george w. bush the presidency. now she tells the "chicago tribune," she had doubts about wading into that case, "bush v. gore," saying, quote, maybe the court should have said, we're not going to take it, goodbye. probably the supreme court added to the problem at the end of the day and adding, it gave the court a less than perfect reputation. >>> and now, amanda knox, the object of a worldwide mystery and tabloid sensation. she's the american college student overseas convicted of murdering her roommate, spending 1,400 days in an italian prison before another court set her free. she knows that everything she says could put her freedom in jeopardy, but in a new book, and an exclusive new interview, she sa